Comment 24 for bug 1662589

The -57 kernel is here:
https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/11544958

However, -54 through -56 kernel were never copied to the archive. I'll build the kernels manually based on the -57 test results. If -57 is good, we can bisect between -57 and -58. If it's bad, we'll have to test earlier kernels.